Have a question: do you aways Mark usage in a Arrow or a pouch every time you shoot, or you only do It Rolling a die after a battle? This makes me think that you only would have three attack Rolls per battle, If you were using a heavy ranged weapon.
Yep, after a battle, roll Usage once for each piece of equipment you used (weapons, ammunition and armour).
You don’t mark usage for each arrow fired (though the GM may ask for a mark/Usage roll if you use it out of combat).
Thank you Very much!